Design and characterization of a modified WDM ring network – An analytical approach

The present paper proposes the design of a modified ring network topology with a significant improvement in average delay and blocking probability over the simple ring network. The backbone ring network is modified by connecting the alternate nodes in regions identified statistically as of high traffic density. A mathematical model for the proposed modified network has been developed to investigate the blocking probability and average delay as the data traverses from source to destination. The analysis reports an improvement in the average delay performance with the inception of call priority at the processing node and thus provides a scope to implement the given grade of service.